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Merge pull request #387 from kemalcr/static-headers

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Allow headers in built-in static file server
This commit is contained in:
Serdar Dogruyol 2017-08-24 00:30:58 +03:00 committed by GitHub
commit c81f8f979a
4 changed files with 41 additions and 0 deletions
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12
spec/static/dir/index.html Normal file
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@ -0,0 +1,12 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>title</title>
<link rel="stylesheet" href="style.css">
<script src="script.js"></script>
</head>
<body>
<!-- page content -->
</body>
</html>

20
spec/static_file_handler_spec.cr
View file

@ -130,4 +130,24 @@ describe Kemal::StaticFileHandler do
end end
end end
end end
it "should handle setting custom headers" do
headers = Proc(HTTP::Server::Response, String, File::Stat, Void).new do |response, path, stat|
if path =~ /\.html$/
response.headers.add("Access-Control-Allow-Origin", "*")
end
response.headers.add("Content-Size", stat.size.to_s)
end
static_headers(&headers)
response = handle HTTP::Request.new("GET", "/dir/test.txt")
response.headers.has_key?("Access-Control-Allow-Origin").should be_false
response.headers["Content-Size"].should eq(
File.stat("#{__DIR__}/static/dir/test.txt").size.to_s
)
response = handle HTTP::Request.new("GET", "/dir/index.html")
response.headers["Access-Control-Allow-Origin"].should eq("*")
end
end end

1
src/kemal/config.cr
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@ -21,6 +21,7 @@ module Kemal
always_rescue, serve_static : (Bool | Hash(String, Bool)), server, extra_options, always_rescue, serve_static : (Bool | Hash(String, Bool)), server, extra_options,
shutdown_message shutdown_message
getter custom_handler_position getter custom_handler_position
property static_headers : (HTTP::Server::Response, String, File::Stat -> Void)?
def initialize def initialize
@host_binding = "0.0.0.0" @host_binding = "0.0.0.0"

8
src/kemal/helpers/helpers.cr
View file

@ -102,6 +102,10 @@ def send_file(env, path : String, mime_type : String? = nil)
minsize = 860 # http://webmasters.stackexchange.com/questions/31750/what-is-recommended-minimum-object-size-for-gzip-performance-benefits ?? minsize = 860 # http://webmasters.stackexchange.com/questions/31750/what-is-recommended-minimum-object-size-for-gzip-performance-benefits ??
request_headers = env.request.headers request_headers = env.request.headers
filesize = File.size(file_path) filesize = File.size(file_path)
filestat = File.stat(file_path)
Kemal.config.static_headers.try(&.call(env.response, file_path, filestat))
File.open(file_path) do |file| File.open(file_path) do |file|
if env.request.method == "GET" && env.request.headers.has_key?("Range") if env.request.method == "GET" && env.request.headers.has_key?("Range")
next multipart(file, env) next multipart(file, env)
@ -196,3 +200,7 @@ end
def gzip(status : Bool = false) def gzip(status : Bool = false)
add_handler HTTP::CompressHandler.new if status add_handler HTTP::CompressHandler.new if status
end end
def static_headers(&headers : HTTP::Server::Response, String, File::Stat -> Void)
Kemal.config.static_headers = headers
end